/*
 * Copyright @ 2010 Radomir Mladenovic and BugsIO Solutions
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *       http://www.apache.org/licenses/LICENSE-2.0
 *       
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.googlecode.gjutil.caching.provider;

public class SimpleCacheProvider extends SimpleCacheBasedProvider {

	private SimpleCache cache = new SimpleCache();

	private long lastCleanup = System.currentTimeMillis();
	
	private int minCleanupInterval = 10000;
	
	private int forcedCleanupInterval = 60000;
	
	@Override
	protected SimpleCache getCache() {
		return cache;
	}

	public synchronized void cleanup() {
		if((lastCleanup + minCleanupInterval) < System.currentTimeMillis()) {
			cache.cleanup();
			lastCleanup = System.currentTimeMillis();
		}
	}

	private void cleanupIfNotRecently() {
		if((lastCleanup + forcedCleanupInterval) < System.currentTimeMillis())
			cleanup();
	}
	
	@Override
	public synchronized Object getFromCache(Object key) {
		cleanupIfNotRecently();
		return super.getFromCache(key);
	}

	@Override
	public synchronized void putInCache(Object key, Object value, int expirationSeconds, Boolean setAlways) {
		cleanupIfNotRecently();
		super.putInCache(key, value, expirationSeconds, setAlways);
	}

	public int getMinCleanupInterval() {
		return minCleanupInterval;
	}

	public void setMinCleanupInterval(int minCleanupInterval) {
		this.minCleanupInterval = minCleanupInterval;
	}

	public int getForcedCleanupInterval() {
		return forcedCleanupInterval;
	}

	public void setForcedCleanupInterval(int forcedCleanupInterval) {
		this.forcedCleanupInterval = forcedCleanupInterval;
	}
	
}
